Home / 90,668.46-125,198.13-75,640.02

Finding the Fourth Proportional to 90,668.46, 125,198.13 and 75,640.02

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Solution

The fourth proportional to 90,668.46, 125,198.13 and 75,640.02 is: 104,446.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,668.46 : 125,198.13 = 75,640.02 : x
  2. Step 2: Convert to fraction form
    90,668.46/125,198.13 = 75,640.02/x
  3. Step 3: Cross multiply
    90,668.46x = 125,198.13 × 75,640.02
  4. Step 4: Simplify right side
    90,668.46x = 9,469,989,057.16
  5. Step 5: Solve for x
    x = 9,469,989,057.16/90,668.46
  6. Step 6: Final answer
    x = 104,446.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.